There is provided a recording disk driving device including a rotor including a rotor hub on which at least one disk is installed, a stator for rotatably supporting the rotor, and a housing including a base member on which the stator is fixedly installed, and an upper case coupled to the base member to form an internal space, wherein the housing is provided with a contact preventing portion formed on a surface of the housing, facing the disk.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A recording disk driving device, comprising: a rotor including a rotor hub having at least one disk installed thereon; a stator rotatably supporting the rotor; and a housing including a base member having the stator fixedly installed thereon, and an upper case coupled to the base member to form an internal space, the housing being provided with a contact preventing portion formed on a surface of the housing, facing the disk, wherein the contact preventing portion is formed as a dynamic pressure groove and is disposed to face an edge portion of the disk.
2. The recording disk driving device of claim 1 , wherein the dynamic pressure groove has a herringbone pattern or a spiral pattern.
3. The recording disk driving device of claim 2 , wherein the dynamic pressure groove is formed in a rotation direction of the disk.
4. The recording disk driving device of claim 1 , wherein the contact preventing portion is formed on at least one of an upper surface of the base member and a lower surface of the upper case.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
December 7, 2012
June 3, 2014
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